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Science Lesson
1008-0031
2000 Issue Z2
shuo shuo lian tong qi qiu zhe jie ke
lu pei zuo
..............page:13-14
21 shi ji ke xue jiao yu ying gai jiao gei xue sheng shi me
sheng jing jing
..............page:16-17
gui zhou sheng qi xiang tai jian wen
gui yang shi shi yan xiao xue ge lun bu xiao zu
..............page:45
liu mo geng ke xue jiao yu si xiang dui yu wen jiao gai de qi shi
ai guo qing ; wang ping ; li zuo feng
..............page:67-69
dui lian tong qi qiu yi ke de liang dian yi wen
wei qiu shi
..............page:18-19
bu yao yin zhui qiu ke xue xing er hu shi qi meng xing
xue zhong huai
..............page:56
shuo shuo la zhu hui xi mie ma ? yi ke de she ji si lu
zhang ding er
..............page:8-9
huan ge si lu jiao luan shi de xing cheng
zhang yi
..............page:28
bu zai liu lei de hong la zhu
zhang liang
..............page:94
lai zi da xiong mao gu xiang de bao gao
tang xi yang
..............page:80-83
zen yang zhi zuo yan dian qi
..............page:72
duan qi tian qi yu bao zhi zuo
zhao zhao
..............page:70
gu ti re zhang leng suo shi yan de gai jin
jiang xue zhu
..............page:65
gai ge : wo men qi dai shi me yang de ke xue jiao yu
zhang dong liang
..............page:36
ge ye shui neng he
..............page:83
dong wu yu huan jing
..............page:76-77
zi ji zhai de guo shi tian
zhao xiao li
..............page:50-51
wo ting kong qi zhan ju kong jian ke hou de gan shou
zheng zhong
..............page:50-51
la zhu hui xi mie ma ? ke tang shi lu
zhang ding er
..............page:5-8
chuan dong zhuang zhi yi ke de nan dian tu po
sun jun hui
..............page:42
fa hui shi yan shi de fu she zuo yong
xu zhi xiang
..............page:61
guan yu ping tun ji dan shi yan de bu chong
shi hui zhen
..............page:59
hu die he fei e
..............page:97
ru he rang di li bu chang cao
wang ling hua
..............page:49
lei qie er ka sen yu di qiu ri
..............page:27
lian xi shi ji jin xing jiao xue li tan
ding er
..............page:53
zhong nian ji zi ran jiao xue mu de zhi wo jian
li bao zhen
..............page:33-34
wo jiao er nian ji de xue sheng ren shi kong qi
ji zuo
..............page:44-45
si nian qian de na chuan jiao yin
tian shen
..............page:94
kong qi re zhang leng suo shi yan zhuang zhi
bi qi guo
..............page:64
jie shao san li zi ran dui bi shi yan
chang hong ling
..............page:60
zuo zuo yu huan jing
guo wei
..............page:96
yi chuan xue
..............page:77
guan yu kong qi cheng fen shi yan de shang que
chen zhi hong ; ma ying
..............page:59
zen yang cai neng rang yu fei de geng hao
wang xiao juan
..............page:49
jiu cai ke fang zhi ji wen
zhou zuo
..............page:95
la zhu zai shui zhong ran shao
..............page:73
zhi wu jin zhi ye de zhi qu yu biao ben jin zhi
wang ming zuo
..............page:58
yang qi jiao xue zhong de liang ge wen ti
lin guo qing ; zhao shao bing
..............page:41-42
luan shi de xing cheng de shi yan gai jin
xu zhi xiang
..............page:66
kong qi qu dong de qi che
..............page:86
gu shi yu xiao xue zi ran jiao xue
ling zhao xing ; liang en rong ; liang zi hong ; liang zhu zuo
..............page:69
dao xiao yuan qu guan cha ma yi
huang pei hui
..............page:50
zhi dao xue sheng guan cha zuo zuo bian qing wa
xie hua ying
..............page:48
bai jing chang wei zuo de sheng huo xi xing yu bao hu
dai nian hua
..............page:78-79
tan jiu xiao xue ke xue jiao yu de ling hun
yang xiao wei
..............page:30-31
bu zuo de yi ge xiao shi yan
xiong yin qiu
..............page:60
pei yang chuang xin yi shi jia qiang tan jiu zhi dao
chen dai chun
..............page:37
shi yan jiao xue zhong de tu shi dao xue
song lian ying
..............page:62-63
dong wu ru he yun dong
..............page:74-75
yao zhu yi shi yan xian xiang
deng jia feng ; peng hui nian
..............page:58
ke yuan ji cui
..............page:88-93
zhi qian xuan tie de mi mi
ji qing ge
..............page:95
lian tong qi qiu ke tang shi lu
lu pei zuo
..............page:10-13
su liao chu cun tai yang neng
..............page:87
gao hao zi ran ke yan shi shi yan de ji dian si kao
shi wan rong
..............page:52-53
da qi ya li shi yan cai liao xuan ze
cao
..............page:61
wei lai liu da ke yan re dian
..............page:87
fang fei re qi qiu mo xing
he wen li
..............page:71-72
tan zi ran jiao yan
yi ai guo
..............page:39
dian nao bu ke neng chao yue ren nao
yang xiong li
..............page:1
nong cun xiao xue zi ran jiao xue de guai zhang
guo yong xin
..............page:29
wu shui ce suo wen shi
..............page:83